2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <boost/foreach.hpp>
27 #include <libsigrok/libsigrok.h>
32 #include "samplingbar.h"
34 #include <pv/devicemanager.h>
35 #include <pv/dialogs/deviceoptions.h>
42 const uint64_t SamplingBar::RecordLengths[20] = {
65 const uint64_t SamplingBar::DefaultRecordLength = 1000000;
67 SamplingBar::SamplingBar(QWidget *parent) :
68 QToolBar("Sampling Bar", parent),
69 _device_selector(this),
70 _configure_button(this),
71 _record_length_selector(this),
72 _sample_rate_list(this),
73 _icon_red(":/icons/status-red.svg"),
74 _icon_green(":/icons/status-green.svg"),
75 _icon_grey(":/icons/status-grey.svg"),
76 _run_stop_button(this)
78 connect(&_run_stop_button, SIGNAL(clicked()),
79 this, SLOT(on_run_stop()));
80 connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
81 this, SLOT(on_device_selected()));
82 connect(&_configure_button, SIGNAL(clicked()),
83 this, SLOT(on_configure()));
85 _sample_rate_value.setDecimals(0);
86 _sample_rate_value.setSuffix("Hz");
88 for (size_t i = 0; i < countof(RecordLengths); i++)
90 const uint64_t &l = RecordLengths[i];
91 char *const text = sr_si_string_u64(l, " samples");
92 _record_length_selector.addItem(QString(text),
93 qVariantFromValue(l));
96 if (l == DefaultRecordLength)
97 _record_length_selector.setCurrentIndex(i);
100 set_capture_state(pv::SigSession::Stopped);
102 _configure_button.setIcon(QIcon::fromTheme("configure",
103 QIcon(":/icons/configure.png")));
105 _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
107 addWidget(&_device_selector);
108 addWidget(&_configure_button);
109 addWidget(&_record_length_selector);
110 _sample_rate_list_action = addWidget(&_sample_rate_list);
111 _sample_rate_value_action = addWidget(&_sample_rate_value);
112 addWidget(&_run_stop_button);
114 connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)),
115 this, SLOT(on_sample_rate_changed()));
116 connect(&_sample_rate_value, SIGNAL(editingFinished()),
117 this, SLOT(on_sample_rate_changed()));
120 void SamplingBar::set_device_list(
121 const std::list<struct sr_dev_inst*> &devices)
123 _device_selector.clear();
125 BOOST_FOREACH (sr_dev_inst *sdi, devices) {
126 const string title = DeviceManager::format_device_title(sdi);
127 _device_selector.addItem(title.c_str(),
128 qVariantFromValue((void*)sdi));
131 update_sample_rate_selector();
134 struct sr_dev_inst* SamplingBar::get_selected_device() const
136 const int index = _device_selector.currentIndex();
140 return (sr_dev_inst*)_device_selector.itemData(
141 index).value<void*>();
144 void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi)
146 for (int i = 0; i < _device_selector.count(); i++)
147 if (sdi == _device_selector.itemData(i).value<void*>()) {
148 _device_selector.setCurrentIndex(i);
153 uint64_t SamplingBar::get_record_length() const
155 const int index = _record_length_selector.currentIndex();
159 return _record_length_selector.itemData(index).value<uint64_t>();
162 void SamplingBar::set_capture_state(pv::SigSession::capture_state state)
164 const QIcon *icons[] = {&_icon_grey, &_icon_red, &_icon_green};
165 _run_stop_button.setIcon(*icons[state]);
166 _run_stop_button.setText((state == pv::SigSession::Stopped) ?
167 tr("Run") : tr("Stop"));
170 void SamplingBar::update_sample_rate_selector()
172 const sr_dev_inst *const sdi = get_selected_device();
173 GVariant *gvar_dict, *gvar_list;
174 const uint64_t *elements = NULL;
176 QAction *selector_action = NULL;
178 assert(_sample_rate_value_action);
179 assert(_sample_rate_list_action);
184 if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
185 &gvar_dict, sdi) != SR_OK)
188 _sample_rate_list_action->setVisible(false);
189 _sample_rate_value_action->setVisible(false);
191 if ((gvar_list = g_variant_lookup_value(gvar_dict,
192 "samplerate-steps", G_VARIANT_TYPE("at")))) {
193 elements = (const uint64_t *)g_variant_get_fixed_array(
194 gvar_list, &num_elements, sizeof(uint64_t));
195 _sample_rate_value.setRange(elements[0], elements[1]);
196 _sample_rate_value.setSingleStep(elements[2]);
197 g_variant_unref(gvar_list);
199 selector_action = _sample_rate_value_action;
201 else if ((gvar_list = g_variant_lookup_value(gvar_dict,
202 "samplerates", G_VARIANT_TYPE("at"))))
204 elements = (const uint64_t *)g_variant_get_fixed_array(
205 gvar_list, &num_elements, sizeof(uint64_t));
206 _sample_rate_list.clear();
208 for (unsigned int i = 0; i < num_elements; i++)
210 char *const s = sr_samplerate_string(elements[i]);
211 _sample_rate_list.addItem(QString(s),
212 qVariantFromValue(elements[i]));
216 _sample_rate_list.show();
217 g_variant_unref(gvar_list);
219 selector_action = _sample_rate_list_action;
222 g_variant_unref(gvar_dict);
223 update_sample_rate_selector_value();
225 // We delay showing the action, so that value change events
228 selector_action->setVisible(true);
231 void SamplingBar::update_sample_rate_selector_value()
233 sr_dev_inst *const sdi = get_selected_device();
239 if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
240 &gvar, sdi) != SR_OK) {
242 "WARNING: Failed to get value of sample rate";
245 samplerate = g_variant_get_uint64(gvar);
246 g_variant_unref(gvar);
248 assert(_sample_rate_value_action);
249 assert(_sample_rate_list_action);
251 if (_sample_rate_value_action->isVisible())
252 _sample_rate_value.setValue(samplerate);
253 else if (_sample_rate_list_action->isVisible())
255 for (int i = 0; i < _sample_rate_list.count(); i++)
256 if (samplerate == _sample_rate_list.itemData(
257 i).value<uint64_t>())
258 _sample_rate_list.setCurrentIndex(i);
262 void SamplingBar::commit_sample_rate()
264 uint64_t sample_rate = 0;
266 sr_dev_inst *const sdi = get_selected_device();
269 assert(_sample_rate_value_action);
270 assert(_sample_rate_list_action);
272 if (_sample_rate_value_action->isVisible())
273 sample_rate = (uint64_t)_sample_rate_value.value();
274 else if (_sample_rate_list_action->isVisible())
276 const int index = _sample_rate_list.currentIndex();
278 sample_rate = _sample_rate_list.itemData(
279 index).value<uint64_t>();
282 if (sample_rate == 0)
285 // Set the samplerate
286 if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
287 g_variant_new_uint64(sample_rate)) != SR_OK) {
288 qDebug() << "Failed to configure samplerate.";
293 void SamplingBar::on_device_selected()
295 update_sample_rate_selector();
299 void SamplingBar::on_sample_rate_changed()
301 commit_sample_rate();
304 void SamplingBar::on_configure()
306 commit_sample_rate();
308 sr_dev_inst *const sdi = get_selected_device();
311 pv::dialogs::DeviceOptions dlg(this, sdi);
314 update_sample_rate_selector_value();
317 void SamplingBar::on_run_stop()
319 commit_sample_rate();
323 } // namespace toolbars